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- Title
Electron Transport Layer-Free Solar Cells Based on Perovskite-Fullerene Blend Films with Enhanced Performance and Stability.
- Authors
Pascual, Jorge; Kosta, Ivet; Tuyen Ngo, T.; Chuvilin, Andrey; Cabanero, German; Grande, Hans J.; Barea, Eva M.; Mora‐Seró, Iván; Delgado, Juan Luis; Tena‐Zaera, Ramon
- Abstract
The solution processing of pinhole-free methylammonium lead triiodide perovskite-C70 fullerene (MAPbI3:C70) blend films on fluorine-doped tin oxide (FTO)-coated glass substrates is presented. Based on this approach, a simplified and robust protocol for the preparation of efficient electron-transport layer (ETL)-free perovskite solar cells is described. Power conversion efficiency (PCE) of 13.6 % under AM 1.5 G simulated sunlight is demonstrated for these devices. Comparative impedance spectroscopy and photostability analysis of the MAPbI3:C70 and single MAPbI3 films compared with conventional compact TiO2 ETL-based devices are shown. The beneficial impact of using MAPbI3:C70 blend films is emphasized.
- Subjects
PEROVSKITE; FULLERENE thin films; ELECTRON transport; SOLAR cells; CARBON films testing; IMPEDANCE spectroscopy
- Publication
ChemSusChem, 2016, Vol 9, Issue 18, p2679
- ISSN
1864-5631
- Publication type
Article
- DOI
10.1002/cssc.201600940